*2026/01/16 09:57:50.64 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/05/21 22:55:46.000 END TIME : UTC 2024/05/21 22:55:57.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 58 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 17.36 2 Depth metres 0.15 17.29 3 Temperature 'deg C (ITS90)' 9.434 13.608 4 Conductivity S/m 3.46892 3.59082 5 Conductance:Specific S/m 4.63194 5.03708 6 Salinity PSS-78 29.61 32.03 7 Speed:Sound m/s 1484.44 1495.87 8 Density kg/m^3 1022.11 1024.809 $END $TABLE: CHANNEL DETAIL ! No Pad Start Width Format Type Decimal_Places !--- ---- ----- ----- ------ ---- -------------- 1 -99 ' ' 7 F R4 2 2 -99 ' ' 7 F R4 2 3 -99 ' ' 8 F R4 3 4 -99 ' ' 10 F R4 5 5 -99 ' ' 10 F R4 5 6 -99 ' ' 7 F R4 2 7 -99 ' ' 8 F R4 2 8 -99 ' ' 9 F R4 3 $END *ADMINISTRATION MISSION : 2024-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 122 LATITUDE : 48 56.39310 N ! (deg min) LONGITUDE : 125 15.73860 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240521_225546 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:00 58 58 MERGEHDR 1.3 2026/01/16 09:53:52 58 58 HDREDIT2 3.2 2026/01/16 09:55:05 ? ? REMOVECH 8.2 2026/01/16 09:56:17 58 58 CALIB 12.1 2026/01/16 09:56:50 58 58 CLEAN 5.3 2026/01/16 09:57:50 58 58 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:05 Applied edit header: C:\Users\huntingtons\Desktop\Misc_Projects\Castaway\castaway2023_HDR.txt Channel 2: Depth [metres] Format: F10.6 ==> F7.2 Channel 3: Temperature [deg C (ITS90)] Format: F14.6 ==> F8.3 Channel 4: Conductivity [mS/cm] Units: ms/cm ==> mS/cm Format: F14.6 ==> F9.1 Channel 5: Conductance:Specific [mS/cm] Name: Specific Conductance ==> Conductance:Specific Units: ms/cm ==> mS/cm Format: F14.6 ==> F9.1 Channel 6: Salinity [PSS-78] Format: F14.6 ==> F7.2 Channel 7: Speed:Sound [m/s] Name: Sound Velocity ==> Speed:Sound Format: F14.6 ==> F8.2 Channel 8: Density [kg/m^3] Format: F14.6 ==> F9.3 -REMOVECH 2026/01/16 09:56:17 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:50 Calibration type = Correct Mode: ONLY - calibration specs from Cal File only. Calibration file = C:\Users\huntingtons\Desktop\Misc_Projects\Castaway\recal-cond.CCF Calibrations applied: Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 4 Conductivity S/m 10 0.0000000E+00 0.1000000E-03 5 Conductance:Specific S/m 10 0.0000000E+00 0.1000000E-03 -CLEAN functions: 2026/01/16 09:57:46 20 Reset #RECS, MIN & MAX values in header. Set header Start and End times from the data. $END *COMMENTS Data Processing Notes: The CastAway-CTD is a small profiling instrument that measures conductivity, temperature, and pressure. Its embedded firmware controls all of the instrument's functions. It is designed for profiling to depths of up to 100m at 5 Hz. It uses a six electrode flow-through conductivity cell with zero external field coupled with a rapid response thermistor (<5Hz) to attain high measurement accuracies. The instrument does not require a pump and is hydrodynamically designed to free fall rate of 1 m/s. Processing was done using the CastAway CTD data processing system which included the following steps: - Pressure correction to remove ambient atmospheric pressure. - Removal of records obtained while the system was stationary. - De-spiking of conductivity data to remove erratic measurements near the water surface that can be caused by air bubbles trapped in the conductivity flow cell. - Bin-averaging with 0.3db bins with linear interpolation used to fill empty bins or the nearest available value for surface or bottom bins. - Combination of downcast and upcast data using a weighted average based on fall velocity. - Derivation of specific conductance, salinity, sound speed, density and depth for each pressure bin. The data were converted to IOS Header format. Calibration dates were taken from the original data file header: % Samples per second,5 % Electronics calibration date,0001-01-01 % Conductivity calibration date,2020-03-13 % Temperature calibration date,2020-03-12 % Pressure calibration date,2020-03-04 % *CALIBRATION $TABLE: CORRECTED CHANNELS ! Name Units Fmla Pad Coefficients ! ---------------------- ----- ---- ------ ------------ Conductivity S/m 10 -99 () (0 0.1E-03) Conductance:Specific S/m 10 -99 () (0 0.1E-03) $END !--1--- --2--- ---3--- ----4---- ----5---- --6--- ---7--- ---8---- !Pressu Depth Tempera Conductiv Conductan Salini Speed: Density !re ture ity ce: ty Sound ! Specific !------ ------ ------- --------- --------- ------ ------- -------- *END OF HEADER 0.15 0.15 13.597 3.57993 4.63758 29.65 1495.87 1022.141 0.45 0.45 13.608 3.57655 4.63194 29.61 1495.86 1022.110 0.75 0.75 13.588 3.57573 4.63321 29.62 1495.81 1022.121 1.05 1.05 13.583 3.57714 4.63566 29.64 1495.82 1022.136 1.35 1.35 13.584 3.57677 4.63502 29.63 1495.83 1022.133 1.65 1.65 13.580 3.57731 4.63620 29.64 1495.83 1022.142 1.95 1.94 13.574 3.57727 4.63690 29.65 1495.82 1022.148 2.25 2.24 13.561 3.57710 4.63828 29.65 1495.79 1022.158 2.55 2.54 13.540 3.57752 4.64133 29.67 1495.74 1022.179 2.85 2.84 13.531 3.57686 4.64159 29.68 1495.72 1022.183 3.15 3.14 13.527 3.57722 4.64250 29.68 1495.72 1022.190 3.45 3.44 13.525 3.57664 4.64194 29.68 1495.71 1022.188 3.75 3.74 13.521 3.57700 4.64294 29.68 1495.71 1022.195 4.05 4.04 13.510 3.57632 4.64338 29.69 1495.68 1022.201 4.35 4.34 13.483 3.57734 4.64796 29.72 1495.63 1022.231 4.65 4.64 13.369 3.58198 4.66785 29.85 1495.41 1022.356 4.95 4.94 13.162 3.59082 4.70477 30.09 1495.01 1022.587 5.25 5.24 12.657 3.59040 4.76724 30.49 1493.78 1022.994 5.55 5.53 12.199 3.58248 4.81529 30.79 1492.58 1023.311 5.85 5.83 11.891 3.57535 4.84579 30.98 1491.74 1023.513 6.15 6.13 11.802 3.57384 4.85544 31.04 1491.51 1023.577 6.45 6.43 11.703 3.56928 4.86237 31.08 1491.22 1023.627 6.75 6.73 11.538 3.56254 4.87506 31.15 1490.73 1023.714 7.05 7.03 11.393 3.55915 4.88987 31.24 1490.34 1023.811 7.35 7.33 11.254 3.55351 4.90085 31.30 1489.93 1023.885 7.65 7.63 11.174 3.55044 4.90745 31.34 1489.70 1023.930 7.95 7.92 11.114 3.54817 4.91250 31.37 1489.53 1023.965 8.25 8.22 11.044 3.54699 4.92039 31.41 1489.34 1024.015 8.55 8.52 10.983 3.54422 4.92480 31.44 1489.16 1024.046 8.85 8.82 10.915 3.54302 4.93246 31.49 1488.98 1024.095 9.15 9.12 10.844 3.53908 4.93674 31.51 1488.76 1024.126 9.45 9.42 10.798 3.53736 4.94078 31.53 1488.63 1024.154 9.75 9.72 10.750 3.53534 4.94457 31.55 1488.49 1024.180 10.05 10.01 10.663 3.53137 4.95105 31.59 1488.23 1024.224 10.35 10.31 10.537 3.52324 4.95718 31.62 1487.82 1024.268 10.65 10.61 10.383 3.51439 4.96626 31.66 1487.32 1024.331 10.95 10.91 10.275 3.50901 4.97385 31.70 1486.99 1024.382 11.25 11.21 10.204 3.50628 4.97990 31.74 1486.78 1024.421 11.55 11.51 10.125 3.50464 4.98880 31.79 1486.57 1024.477 11.85 11.81 10.077 3.50243 4.99248 31.81 1486.42 1024.502 12.15 12.10 10.034 3.49945 4.99437 31.82 1486.28 1024.516 12.45 12.40 9.952 3.49429 4.99875 31.84 1486.01 1024.547 12.75 12.70 9.862 3.48814 5.00276 31.85 1485.71 1024.576 13.05 13.00 9.768 3.48684 5.01443 31.92 1485.46 1024.647 13.35 13.30 9.735 3.48465 5.01604 31.93 1485.35 1024.659 13.65 13.60 9.711 3.48360 5.01798 31.94 1485.28 1024.673 13.95 13.90 9.676 3.48144 5.02002 31.95 1485.17 1024.687 14.25 14.19 9.657 3.48020 5.02097 31.95 1485.11 1024.695 14.55 14.49 9.644 3.48026 5.02292 31.96 1485.08 1024.708 14.85 14.79 9.623 3.48026 5.02592 31.98 1485.03 1024.726 15.15 15.09 9.618 3.47967 5.02574 31.98 1485.02 1024.727 15.45 15.39 9.621 3.47938 5.02495 31.98 1485.03 1024.724 15.75 15.69 9.612 3.47858 5.02513 31.98 1485.00 1024.726 16.05 15.98 9.606 3.47708 5.02386 31.97 1484.97 1024.721 16.35 16.28 9.591 3.47145 5.01788 31.92 1484.86 1024.690 16.65 16.58 9.543 3.47301 5.02715 31.98 1484.76 1024.745 16.95 16.88 9.474 3.47024 5.03310 32.01 1484.56 1024.783 17.36 17.29 9.434 3.46892 5.03708 32.03 1484.44 1024.809